Metalepsis is a figure of speech in which reference is made to something by means of another thing that is remotely related to it, either through a causal relationship, or through another figure of speech.

Example:

A lead foot is driving behind me.

This refers to someone who drives fast. This metalepsis is achieved only through a cause and effect relationship. Lead is heavy and a heavy foot would press the accelerator, and this would cause the car to speed.